Question 1

Codex Pro 100 vs Copilot Max for coding: which gives more building hours per dollar?

Accepted Answer

At p50 peak, Codex Pro 100 returns 0.16 building h/week per $/month (16 h/week for $100/mo) and Copilot Max returns 0.22 building h/week per $/month (22 h/week for $100/mo), so Copilot Max gives more building hours per dollar; Codex Pro 100 runs a benchmark-measured model for building (62.0/100 quality), the other does not; Codex Pro 100 hours are guessed — treat them as a guess; Copilot Max hours are guessed — treat them as a guess.

Question 2

What do Codex Pro 100 and Copilot Max cost?

Accepted Answer

$100/mo and $100/mo. Comparisons only pair plans within 1.5× of each other on price.

Question 3

Can Codex Pro 100 and Copilot Max run as terminal CLI agents?

Accepted Answer

Codex Pro 100 runs as a CLI agent. Copilot Max runs as a CLI agent. The stack builder can require at least one CLI seat.

	Codex Pro 100	Copilot Max
Price	$100/mo	$100/mo
Building h/week p50 (p10–p90), peak	16 (8–28)	22 (10–36)
Building h/week p50 (p10–p90), off-peak	—	—
Building h/week per $/mo at p50 peak	0.16	0.22
Benchmark quality /100s	GPT-6 Astra (max) · Codex · 62/100 planning · GPT-6 Astra (max) · Codex · 62/100 building · GPT-6 Astra (max) · Codex · 62/100 admin	not measured planning · not measured building · not measured admin
Source	guessed	guessed
Terminal CLI agent	Yes	Yes
Clock	no published off-peak discount	credit pool, no off-peak rate

Codex Pro 100 vs Copilot Max, side by side